Tellurian.



H. L. BRETSGH.

TELLURIAN.

APPLICATION 2111311111011, 1912.

1,099,01 4, Patented June 2, 1914.

2 SHEETS-SHEET 1,

H. L. BRETSOH.

TELLURIAN.

APPLIOATION FILED 10110.11, 1912.

Patented June 2, 1914 2 SHEETS-SHEET 2.

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COLUMBIA PLANOnAPH C0..WASH|NCITON, D. c.

HOMER L. BRETSCH, OF HASTINGS-UPON-H'UDSON, NEWT YORK.

TELLURIAN.

tenacia.

Specification of Letters Patent.

Patented J une 2, 1914.

Application filed December 11, 1912. Serial No. 736,183.

Tt all 'whom it may concern Be it lrnown that 1, Hoeren L. Brunson, acitizen of the United States, residing at llastings-upon-Hudson, in thecounty of Westchester and State of New York, have invented new anduseful lmprovements in rllellurians, of which the fication.

rlhis invention relates to tellurians of the type disclosed in my priorPatent #1010226, dated November 28, 1911, and the object of the presentinvention is to provide certain improvements upon the device coveredthereby, as hereinafter fully described and claimed.

ln the accompanying drawings,-Figu re 1 is a side elevation. Fig. 2 is atop plan view. Fig. 3 is a vertical longitudinal section. Fig. 4 is ahorizontal section on the line 4-4 of Fig. 3. Figx is a detail verticalsectional view on the line 5-5 of Fig. Fig. 6 is a bot-tom plan view ofthe axis quadrant. Fig. 7 is a detail section on line 7-7 of Fig. 3.

Referring more particularly to the drawings, 1 represents a base havingany suitable outlines, but preferably circular in form. 0n the uppersurface of the base, adjacent the periphery thereof, is spaced suitableindicia 3 and 4 indicating the months of the year and the signs of theZodiac, and also lines 5 and 6 indicating the time in which the earthpasses through the solstices and equinoxes, the months of the year beingarranged anticlockwise. The center of the base is provided with thefrustum of a cone 7 through which and through the base extends a shaft 8upon which is journaled a globe supporting arm 9, the same being helddown upon the cone by a conical washer 1() secured to the shaft. Saidglobe supporting arm is provided with a pointer 11 adapted to operateover the face of the base. The free end of the arm 9 is supported bymeans of a roller 12 operating over the base and carried by a bracket 13secured to the under side of the arm. rl`he arm 9 is preferably hollowand has inclosed therein bearing members 14, 15 and 16 in which isjournaled a transmission shaft 17 having pinions 18 and 19 secured uponopposite ends thereof. The pinion 18 is in mesh with a beveled gear 20secured to the top of the cone, and the pinion 19 is in mesh with asimilar beveled gear 21 mounted upon the shaft 22 extending verticallyfrom the arm and carfollowing is a specirying upon its upper end an axisquadrant 23. rlhe bearing 14 is in the form of a yoke bracket carried byan adjusting wing screw 14L swiveled thereto and working in a threadedopening in the arm 9, said bracket being movable upwardly into a recess14b 1n the under side of the arm, whereby the gear 18 may be adjustedinto and out of engagement with the gear 20. By this means the arm 9 maybe revolved upon theshaft 8 with or without operating the shaft 17 andtransmitting motion to the quadrant arm and globe, as hereinafterdescribed.

The quadrant 23 is provided with a longitudinal series of threadedopenings 24 to adjustably receive the lower end of the axle 25, saidaxle having a collar 26 which seats -upon the top of the quadrant and anut 27 codperating with the washer to clamp it in adjusted position onthe quadrant. By this construction the axle 25 may be meunted atdifferent angles upon the quadrant, which latter is graduated as shownat 28, to determine the angle of the axle. Supported by the axle is anordinary globe 29 representing the earth and having the different zonesmarked thereon.

Surrounding the axle 25 and secured to the under side of the globe is agear 30 which 1s 1n mesh with a gear 31 carried upon a transmissionshaft 32 journaled and pivotally mounted in a bearing opening 33 in thequadrant. The lower end of the shaft is provided with a beveled gear 34which is in mesh with a similar but larger gear 35 held stationary uponthe arm 9 and surrounding the shaft 22. Ilfhus it will be noticed thatas the arm 9 is rotated upon the shaft S, when the pinion 18 is inengagement with the gear 20, said pinion 18 will be rotated byengagement with said gear 2O and thus, through the shaft 17 pinion 19and gear 21 the shaft 22 will be rotated. Thusas the arm is rotated theearth will be revolved with the quadrant, and the gear 34 being in meshwith the gear 35 which is stationary upon the arm, the earth will berotated upon its axis. lt will, however, be apparent that by adjustingthe screw 14a to throw the gear 18 out of mesh with the pinion 20, thearm 9 may be revolved upon its axis without transmitting motion to theshaft 17, and therefore without rotating the shaft 22 and quadrant 23.The shaft 22 carries an arm 22L having its free end arranged at an anglethereto and provided with a longitudiperihelion and aphelion, in themonths or nal slot 22h. Slidablv engaging said arm 22a 1s a sleeve 32ahaving openings in lts top and bottom for the passage of the shaft 32,which also extends through the slot 22h. The inner end of the sleeve isprovided with a longitudinally slotted extension 321 adjustably securedto the arm 22a by a set screw 32C. By this construction the sleeve maybe adjusted on the arm 22a to shift the shaft 32 so as to throw the gearSet into and out of mesh with the gear 35, wiereby the arm 9 may also berevolved with or without turning the shaft 32 and rotating the globeupon its aXis 25.

ln order that the circle of illumination and the twilight belt may beclearly shown upon the globe during all periods and at all places, thereis secured to the arm 9 a standard 86 from which projects a horizontalyoke member 37 surrounding one-half of the globe and having secured toits outer ends a substantially semi-circular bar 3S which is ofsufficient size to permit the passage of the globe in all of itspositions. Spaced from the bar 38 is a similar bar 39 which has its endsstepped in the supportingmember 37 and is connected to the bar 3S by abridge piece 1l() which has its outer end threaded and passed throughthe member 38 and provided with a thumb nut all, so that the member 39is spaced away from the member 8S a distance corresponding to 18o uponthe globe, which is the width of the twilight belt.

Mounted upon the end of the shaft 8, which is hollow, is an electricglobe lf2 having a connection with a source of current supply by wirest3 which extend through the shaft, and a pipe lll is also connected tothe shaft so that the sun may be represented by a gas globe instead ofan electric incandescent light. r)She hollow shaft 8 is provided with anoffset portion 8a, arranged to change the position of the light withrespect to the globe 29 at different positions in the movements of thearm 9 to illustrate the December and June, respectively, or that theearth is nearer the sun in winter than in summer. lin order that theposition of the vertical rays may be indicated upon the globe, astandard 4:5 is secured to the arm intermediate its length and mountedupon the upper end of the standard is a thin arm or pointer 46 which isin line with the sun and the 90o mark on the quadrant or with theintermediate point between the poles. By rotating the arm anti-clockwiseover the base the before mentioned results may be readily7 determined.

I claim l. In a device of the class described, the combination. with abase, of an arm rotatably mounted thereon, a quadrant, means actuated inthe rotation of the arm for rotating the quadrant, means for throwingthe first named means into or out of action, a shaft mounted upon thequadrant, and a globe rotatably mounted upon the shaft.

2. .ln a device of the class described, a base, an arm rotatably mountedthereon, a quadrant, a shaft carried thereby, a globe rotatably mountedupon the shaft, gearing actuated by the rotation of the arm for rotatingthe quadrant, means for throwing said gearing into and out 0f operation,gearing actuated by the first named gearing in the rotation of the armfor rotating the globe upon its shaft, and means for throwing the latternamed gearing into and out of action.

In a device of the class described, a base, an arm rotatably mountedthereon, a shaft carried by the arm and liournaled in the base, a gearsurrounding said shaft and fixed to the base, a gear rotatably mountedin he arm, an operating connection between the gear on the base and thelast named gear, means for throwing said connection into and out ofoperation, a quadrant secured to the gear rotatably mounted in the arm,a shaft carried by said quadrant, a globe mounted upon the shaft, a gearsecured to the arm, a gear secured to the globe, a shaft rotatably andpivotally mounted on the quadrant and provided with gears meshing withsaid gears on the globe and arm, and adjusting means coupled Vto saidshaft for pivotally moving the same to throw the last named gears intoor out of action.

In testimony whereof I aiiiX my signature in presence of two witnesses.

HOMER L. BRETSCH.

TWitnesses CLARENCE D. HaNroRD, EDWIN F. BALDWIN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

